xen/include: introduce resource.h

Move resource definitions to a new architecture-agnostic shared header file.

Signed-off-by: Denis Mukhin <dmukhin@ford.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
This commit is contained in:
Denis Mukhin authored and Stefano Stabellini committed 2025-03-03 16:06:17 -08:00
1 parent 29a9638fd4
commit 1b861bd95e
3 files changed
+38 -35

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+1 -20
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@@ -24,6 +24,7 @@
#include <xen/ctype.h>
#include <asm/setup.h>
#include <xen/err.h>
#include <xen/resource.h>
const void *device_tree_flattened;
dt_irq_xlate_func dt_irq_xlate;
@@ -535,26 +536,6 @@ int dt_child_n_size_cells(const struct dt_device_node *parent)
return __dt_n_size_cells(parent, true);
}
/*
* These are defined in Linux where much of this code comes from, but
* are currently unused outside this file in the context of Xen.
*/
#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */
#define IORESOURCE_TYPE_BITS 0x00001f00 /* Resource type */
#define IORESOURCE_IO 0x00000100 /* PCI/ISA I/O ports */
#define IORESOURCE_MEM 0x00000200
#define IORESOURCE_REG 0x00000300 /* Register offsets */
#define IORESOURCE_IRQ 0x00000400
#define IORESOURCE_DMA 0x00000800
#define IORESOURCE_BUS 0x00001000
#define IORESOURCE_PREFETCH 0x00002000 /* No side effects */
#define IORESOURCE_READONLY 0x00004000
#define IORESOURCE_CACHEABLE 0x00008000
#define IORESOURCE_RANGELENGTH 0x00010000
#define IORESOURCE_SHADOWABLE 0x00020000
/*
* Default translator (generic bus)
*/
+3 -15
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@@ -50,6 +50,7 @@
#include <xen/rbtree.h>
#include <xen/sched.h>
#include <xen/sizes.h>
#include <xen/resource.h>
#include <asm/atomic.h>
#include <asm/device.h>
#include <asm/io.h>
@@ -64,6 +65,8 @@
/* Alias to Xen device tree helpers */
#define device_node dt_device_node
#define platform_device dt_device_node
#define of_phandle_args dt_phandle_args
#define of_device_id dt_device_match
#define of_match_node dt_match_node
@@ -71,21 +74,6 @@
#define of_property_read_bool dt_property_read_bool
#define of_parse_phandle_with_args dt_parse_phandle_with_args
/* Xen: Helpers to get device MMIO and IRQs */
struct resource
{
paddr_t addr;
paddr_t size;
unsigned int type;
};
#define resource_size(res) (res)->size;
#define platform_device dt_device_node
#define IORESOURCE_MEM 0
#define IORESOURCE_IRQ 1
static struct resource *platform_get_resource(struct platform_device *pdev,
unsigned int type,
unsigned int num)
+34
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@@ -0,0 +1,34 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* System resource description.
*/
#ifndef XEN__RESOURCE_H
#define XEN__RESOURCE_H
#define IORESOURCE_BITS 0x000000FFU /* Bus-specific bits */
#define IORESOURCE_TYPE_BITS 0x00001F00U /* Resource type */
#define IORESOURCE_IO 0x00000100U /* PCI/ISA I/O ports */
#define IORESOURCE_MEM 0x00000200U
#define IORESOURCE_REG 0x00000300U /* Register offsets */
#define IORESOURCE_IRQ 0x00000400U
#define IORESOURCE_DMA 0x00000800U
#define IORESOURCE_BUS 0x00001000U
#define IORESOURCE_PREFETCH 0x00002000U /* No side effects */
#define IORESOURCE_READONLY 0x00004000U
#define IORESOURCE_CACHEABLE 0x00008000U
#define IORESOURCE_RANGELENGTH 0x00010000U
#define IORESOURCE_SHADOWABLE 0x00020000U
#define IORESOURCE_UNKNOWN (~0U)
struct resource {
paddr_t addr;
paddr_t size;
unsigned int type;
};
#define resource_size(res) ((res)->size)
#endif /* XEN__RESOURCE_H */
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